does ghk-cu cause receptor downregulation or desensitization Expression and Purification of Recombinant GHK Tripeptides Are Able to Protect against Acute Cardiotoxicity from Exposure to Waterborne-Copper in Zebrafish Skincare effect:Anti-aging

ghk-cu peptide injection before and after hair Figure 2 from GHK – Copper in Skin Remodeling

Selective targeting of CD38 hydrolase and cyclase activity as an approach to immunostimulation

DNA synthesis

Skincare effect:Anti-aging

There is no binding partner established for any of them, no published saturable binding curve that has been independently reproduced, and no genetic model in which deleting a candidate target abolishes a reported effect